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id="post"><article class="post-content" id="article-container"><h2 id="一、安装ES后台服务"><a href="#一、安装ES后台服务" class="headerlink" title="一、安装ES后台服务"></a>一、安装ES后台服务</h2><p>下载所需 ES 7.4.2，解压缩到/usr/local/（可以是其他目录）。</p>
<ol>
<li>修改配置文件 elasticsearch.yml<pre class="line-numbers language-shell" data-language="shell"><code class="language-shell"><span class="token punctuation">[</span>root@192 local<span class="token punctuation">]</span><span class="token comment"># cd elasticsearch-7.4.2/</span>
<span class="token punctuation">[</span>root@192 elasticsearch-7.4.2<span class="token punctuation">]</span><span class="token comment"># mkdir data</span>
<span class="token punctuation">[</span>root@192 elasticsearch-7.4.2<span class="token punctuation">]</span><span class="token comment"># cd config</span>
<span class="token punctuation">[</span>root@192 config<span class="token punctuation">]</span><span class="token comment"># vim elasticsearch.yml </span>
<span class="token comment"># 集群名</span>
cluster.name: vm-es-application
<span class="token comment"># 节点名</span>
node.name: es-node-1
<span class="token comment"># 数据位置</span>
path.data: /usr/local/elasticsearch-7.4.2/data
<span class="token comment"># 日志位置</span>
path.logs: /usr/local/elasticsearch-7.4.2/logs
<span class="token comment"># 设置绑定IP</span>
network.host: <span class="token number">0.0</span>.0.0
<span class="token comment"># 端口号默认9200</span>
<span class="token comment">#http.port: 9200</span>
<span class="token comment"># 启动集群使用节点</span>
cluster.initial_master_nodes: <span class="token punctuation">[</span><span class="token string">"es-node-1"</span><span class="token punctuation">]</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre></li>
<li>调整虚拟机配置（根据实际内存情况配置，默认1g）<pre class="line-numbers language-shell" data-language="shell"><code class="language-shell">-Xms128m
-Xmx128m<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span></span></code></pre></li>
<li>创建专用访问账户，修改es目录用户和所属组<pre class="line-numbers language-shell" data-language="shell"><code class="language-shell"><span class="token punctuation">[</span>root@192 elasticsearch-7.4.2<span class="token punctuation">]</span><span class="token comment"># useradd esuser</span>
<span class="token punctuation">[</span>root@192 elasticsearch-7.4.2<span class="token punctuation">]</span><span class="token comment"># chown -R esuser:esuser /usr/local/elasticsearch-7.4.2/</span>
此时便不能再使用root访问es
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre></li>
<li>继续配置环境<pre class="line-numbers language-shell" data-language="shell"><code class="language-shell"><span class="token punctuation">[</span>root@192 bin<span class="token punctuation">]</span><span class="token comment"># su esuser</span>
<span class="token punctuation">[</span>esuser@192 bin<span class="token punctuation">]</span>$ ./elasticsearch
ERROR: <span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span> bootstrap checks failed
<span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">]</span>: max <span class="token function">file</span> descriptors <span class="token punctuation">[</span><span class="token number">4096</span><span class="token punctuation">]</span> <span class="token keyword">for</span> elasticsearch process is too low, increase to at least <span class="token punctuation">[</span><span class="token number">65535</span><span class="token punctuation">]</span>
<span class="token punctuation">[</span><span class="token number">2</span><span class="token punctuation">]</span>: max virtual memory areas vm.max_map_count <span class="token punctuation">[</span><span class="token number">65530</span><span class="token punctuation">]</span> is too low, increase to at least <span class="token punctuation">[</span><span class="token number">262144</span><span class="token punctuation">]</span>
<span class="token punctuation">[</span><span class="token number">2020</span>-11-29T21:26:18,540<span class="token punctuation">]</span><span class="token punctuation">[</span>INFO <span class="token punctuation">]</span><span class="token punctuation">[</span>o.e.n.Node               <span class="token punctuation">]</span> <span class="token punctuation">[</span>es-node-1<span class="token punctuation">]</span> stopping <span class="token punctuation">..</span>.
<span class="token punctuation">[</span><span class="token number">2020</span>-11-29T21:26:18,567<span class="token punctuation">]</span><span class="token punctuation">[</span>INFO <span class="token punctuation">]</span><span class="token punctuation">[</span>o.e.n.Node               <span class="token punctuation">]</span> <span class="token punctuation">[</span>es-node-1<span class="token punctuation">]</span> stopped
<span class="token punctuation">[</span><span class="token number">2020</span>-11-29T21:26:18,568<span class="token punctuation">]</span><span class="token punctuation">[</span>INFO <span class="token punctuation">]</span><span class="token punctuation">[</span>o.e.n.Node               <span class="token punctuation">]</span> <span class="token punctuation">[</span>es-node-1<span class="token punctuation">]</span> closing <span class="token punctuation">..</span>.
<span class="token punctuation">[</span><span class="token number">2020</span>-11-29T21:26:18,597<span class="token punctuation">]</span><span class="token punctuation">[</span>INFO <span class="token punctuation">]</span><span class="token punctuation">[</span>o.e.n.Node               <span class="token punctuation">]</span> <span class="token punctuation">[</span>es-node-1<span class="token punctuation">]</span> closed<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
切换root，修改配置，同时需要服务器内存大于1.5G。<pre class="line-numbers language-shell" data-language="shell"><code class="language-shell"><span class="token punctuation">[</span>root@192 elasticsearch-7.4.2<span class="token punctuation">]</span><span class="token comment"># vim /etc/security/limits.conf</span>
* soft nofile <span class="token number">65536</span>
* hard nofile <span class="token number">131072</span>
* soft nproc <span class="token number">2048</span>
* hart nproc <span class="token number">2048</span>

<span class="token punctuation">[</span>root@192 elasticsearch-7.4.2<span class="token punctuation">]</span><span class="token comment"># vim /etc/sysctl.conf</span>
vm.max_map_count<span class="token operator">=</span><span class="token number">262145</span>
<span class="token comment">## 刷新配置</span>
<span class="token punctuation">[</span>root@192 elasticsearch-7.4.2<span class="token punctuation">]</span><span class="token comment"># sysctl -p  </span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre></li>
<li>访问ES集群</li>
<li>168.233.130:9200，9200是外部访问端口，9300是内部节点访问端口。<pre class="line-numbers language-shell" data-language="shell"><code class="language-shell"><span class="token punctuation">{</span><span class="token string">"name"</span><span class="token builtin class-name">:</span> <span class="token string">"es-node-1"</span>,
<span class="token string">"cluster_name"</span><span class="token builtin class-name">:</span> <span class="token string">"vm-es-application"</span>,
<span class="token string">"cluster_uuid"</span><span class="token builtin class-name">:</span> <span class="token string">"qbf0m7U2RNOc-FM2iq5AmQ"</span>,
<span class="token string">"version"</span><span class="token builtin class-name">:</span> <span class="token punctuation">{</span><span class="token string">"number"</span><span class="token builtin class-name">:</span> <span class="token string">"7.4.2"</span>,
<span class="token string">"build_flavor"</span><span class="token builtin class-name">:</span> <span class="token string">"default"</span>,
<span class="token string">"build_type"</span><span class="token builtin class-name">:</span> <span class="token string">"tar"</span>,
<span class="token string">"build_hash"</span><span class="token builtin class-name">:</span> <span class="token string">"2f90bbf7b93631e52bafb59b3b049cb44ec25e96"</span>,
<span class="token string">"build_date"</span><span class="token builtin class-name">:</span> <span class="token string">"2019-10-28T20:40:44.881551Z"</span>,
<span class="token string">"build_snapshot"</span><span class="token builtin class-name">:</span> false,
<span class="token string">"lucene_version"</span><span class="token builtin class-name">:</span> <span class="token string">"8.2.0"</span>,
<span class="token string">"minimum_wire_compatibility_version"</span><span class="token builtin class-name">:</span> <span class="token string">"6.8.0"</span>,
<span class="token string">"minimum_index_compatibility_version"</span><span class="token builtin class-name">:</span> <span class="token string">"6.0.0-beta1"</span>
<span class="token punctuation">}</span>,
<span class="token string">"tagline"</span><span class="token builtin class-name">:</span> <span class="token string">"You Know, for Search"</span>
<span class="token punctuation">}</span><span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span><span></span></span></code></pre>
关闭可以使用ctrl+c。如果需要在后台作为守护进程运行，使用-d选项。<pre class="line-numbers language-none"><code class="language-none">[esuser@192 elasticsearch-7.4.2]$ ./bin/elasticsearch -d
关闭的话
jps 获取进程号
kill 进程号<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre>
<h2 id="二、ElasticSearch-Head可视化工具"><a href="#二、ElasticSearch-Head可视化工具" class="headerlink" title="二、ElasticSearch Head可视化工具"></a>二、ElasticSearch Head可视化工具</h2>谷歌商店，安装ElasticSearch Head插件（也可以github下载安装），可以查看集群与节点的信息。</li>
</ol>
<p><img src="https://gitee.com/dtyytop/blogimage/raw/master/img/20210523160527.png" alt="4473_1"></p>
<p>源码部署的方式会存在跨域问题，需要添加配置。</p>
<pre class="line-numbers language-none"><code class="language-none">[root@192 config]# vim elasticsearch.yml ![b8493d3740288fac242eb57e7f027f78.png](en-resource://database/4473:1)

http.cors.enabled: true
http.cors.allow-origin: "*"<span aria-hidden="true" class="line-numbers-rows"><span></span><span></span><span></span><span></span></span></code></pre></article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta">文章作者: </span><span class="post-copyright-info"><a href="mailto:undefined">dtyy</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta">文章链接: </span><span class="post-copyright-info"><a href="https://dtyytop.gitee.io/2021/05/22/devnotes/fen-bu-shi/fen-bu-shi-sou-suo-yin-qing-elasticsearch/centos7-an-zhuang-es7/">https://dtyytop.gitee.io/2021/05/22/devnotes/fen-bu-shi/fen-bu-shi-sou-suo-yin-qing-elasticsearch/centos7-an-zhuang-es7/</a></span></div><div class="post-copyright__notice"><span class="post-copyright-meta">版权声明: </span><span class="post-copyright-info">本博客所有文章除特别声明外，均采用 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" target="_blank">CC BY-NC-SA 4.0</a> 许可协议。转载请注明来自 <a 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